Tile or block.



UNITED STATES PATENT OFFICE.

ROBERT W. SCEWEI'MLEB AND PAUL A. POULALION, OF WHEELING, WEST VIRGINIA,

ASSIGNOBS TO COMPO-TILE EIBEPEOOFING COMPANY, OF WHEELING, WEST VIB- GINIA, A CORPORATION OF WEST VIRGINIA.

TILE OB BLOCK.

Io Drawing.

To all whom it may concern:

Be it known that we, Roam W. Sonwnm- LER and PAUL A. POULALION, citizens of the United States, and residents of Wheeling, in the county of Ohio and State of West Virginia, have invented new and useful Improvements in Tiles or Blocks, of which the following is a specification.

Our invention is an improvement in tiles or blocks, and has for its object to provide a tile or block of the character specified especially adapted for use in floors, partitions, furrmg, conduits, flue linings, heat and vent ducts and sewer pipes.

In the present embodiment of the invention, the. improved tile or block, which may be of any preferred size and shape, is composed of plaster of Paris, cement, slag and cinders, and the said ingredients are combined in varying proportions, depending upon the object in view.

The slag used is ordina furnace slag, and the cm ers are ituminous coal cinders. The slag is crushed suificiently to permit its being readily mixed with the cinders, and the cinders are crushed to a diameter of about one-quarterinch, and the slag is used to fill in the voids between the cinders.

A preferred combination is as follows:

ent 0 parts Sla Two parts Cinders Four parts he improved composition is fireproof, waterproof, soundproof and may be penelpeeineation 0! Letters Patent.

Application filed September 17, 1917. Serial No. 191,885.

round blast Patented Feb. 5, 1918.

trated b a nail, thus permitting laths, Efrmgers and the like to be nailed to the composition. The composition, while strong, is very light.

The composition is formed in the following manner: The cinders are first reduced in a crusher to about one-fourth inch diameter. The cinders, cement and slag are then mixed in a small batch mixer, such as is ordinarily used for concrete. Water is now added until the mixture is sufiiciently thin to pour, and plaster of Paris is added just before pouring. The plaster of Paris causes the mixture to set qulckl so that the tile may'h'ehandleda few minutes after being poured. Preferably, the molds are made cltillapsible to permit the easy removal of the t' e.

We claim:

1. A composition for tiles or blocks composed of cinders, slag cement and plaster of Paris, in the following proportions: plaster of Paris, one part; cement, two parts; slag, two parts and cinders, four parts.

2. A composition for tiles or blocks composed of cinders, slag, cement and plaster of Paris.

3. A composition for tiles or blocks composed of cinders, slag, cement and plaster of Paris, formed by crushing the cmders. thoroughly mixing the cinders, cement and slag dry, adding water until the mixture is thin enou h to our, adding the plaster of Paris, an mol the mixture.

ROBER W. SCHWEIMLER. PAUL A. POULALION.

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